.Dd Jun 7, 2017
.Dt AUTONE 1
.Os
.Sh NAME
.Nm autone
.Nd generate Au formatted audio tone
.Sh SYNOPSIS
.Nm
.Op Fl R
.Op Fl c Ar channels
.Op Fl e Ar encoding
.Op Fl f Ar frequency
.Op Fl l Ar length
.Op Fl n Ar periods
.Op Fl r Ar rate
.Op Fl t Ar type
.Sh DESCRIPTION
Generate an Au formatted audio stream consisting of a single tone.
.Pp
The options are as follows:
.Bl -tag -width Ds
.It Fl R
Write raw data (without the Au header).
.It Fl c Ar channels
Set the number of channels in the output
.Pq normally 1 .
.It Fl e Ar encoding
Set the encoding of the output
.Pq normally 16-bit PCM .
.It Fl f Ar frequency
Set the frequency of the generated tona in Hertz
.Pq normally 440 .
.It Fl l Ar length
Set the length of the generated tone in seconds
.Pq rounded to the nearest full period ,
overriding any previous
.Fl l
or
.Fl n
options.
.It Fl n Ar periods
Set the length of the generated tone in the number of periods,
overriding any previous
.Fl l
or
.Fl n
options.
.It Fl r Ar rate
Set the sample-rate of the output
.Pq normally 48000 .
.It Fl t Ar type
Set the type of the tone generated
.Pq normally Sy square .
The available types are
.Sy square ,
.Sy sawtooth ,
and
.Sy triangle .
.El
.Sh EXIT STATUS
.Ex -std
.Sh SEE ALSO
.Xr au 7
.Xr aumix 1
.Xr audiotest 1
